His new film and sound installation, focusing on a vanishing community of elderly female sea workers on the North Pacific island of Jeju, portrays a group known as “haenyeo” (sea-women) – aged between 60 and 90, these intrepid and brave divers plunge fearsome depths without an oxygen supply in search of seafood, seaweed and pearls.

They used to be a dominant economic force on the island, which itself is something of a one-off, floating on a black volcanic rock between South Korea, Japan and China. A matriarchal society within the male-dominated Korean culture, the haenyeo are now on the verge of disappearance.

Karikis records their vocal “bursts” as they emerge from the water. Their breathing technique is known as sumbisori, punctuating each dive in a high-pitched, breathy shriek passed between generations, transmitted from mother to daughter when a new haenyeo begins training at the age of eight.

These wheezes, whistles and gasping calls are described as both alarming and joyous, and Karikis took part himself, completing a series of watercolours while holding his breath.

The installation also sounds their work songs, debates about territory and discussions of pay and unionisation.

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